<template>
    <div :class="{ 'custom-navbar': showV2Tips }">
        <div v-if="showV2Tips" class="jump-link">
            文档正在编写完善中，发现文档与组件不一致的地方，请及时联络，谢谢~
            <a class="link" href=""></a>
            <a class="link" href="javascript:;" style="margin-left: 30px" @click="noMoreTips">不再提示</a>
        </div>
        <header
            class="navbar"
            :style="{
                position: showV2Tips ? 'relative' : 'fixed',
            }">
            <SidebarButton @toggle-sidebar="$emit('toggle-sidebar')" />

            <router-link :to="$localePath" class="home-link">
                <img
                    class="logo"
                    v-if="$site.themeConfig.logo"
                    :src="$withBase($site.themeConfig.logo)"
                    :alt="$siteTitle" />
                <span ref="siteName" class="site-name" v-if="$siteTitle" :class="{ 'can-hide': $site.themeConfig.logo }"
                    >Dyend App</span
                >
            </router-link>

            <div
                class="links"
                :style="
                    linksWrapMaxWidth
                        ? {
                              'max-width': linksWrapMaxWidth + 'px',
                          }
                        : {}
                ">
                <AlgoliaSearchBox v-if="isAlgoliaSearch" :options="algolia" />
                <SearchBox v-else-if="$site.themeConfig.search !== false && $page.frontmatter.search !== false" />
                <NavLinks class="can-hide" />
            </div>
        </header>
    </div>
</template>

<script>
import AlgoliaSearchBox from '@AlgoliaSearchBox'
import SearchBox from '@SearchBox'
import SidebarButton from '@theme/components/SidebarButton.vue'
import NavLinks from '@theme/components/NavLinks.vue'

export default {
    components: { SidebarButton, NavLinks, SearchBox, AlgoliaSearchBox },

    data() {
        return {
            linksWrapMaxWidth: null,
        }
    },

    mounted() {
        const MOBILE_DESKTOP_BREAKPOINT = 719 // refer to config.styl
        const NAVBAR_VERTICAL_PADDING = parseInt(css(this.$el, 'paddingLeft')) + parseInt(css(this.$el, 'paddingRight'))
        const handleLinksWrapWidth = () => {
            if (document.documentElement.clientWidth < MOBILE_DESKTOP_BREAKPOINT) {
                this.linksWrapMaxWidth = null
            } else {
                this.linksWrapMaxWidth =
                    this.$el.offsetWidth -
                    NAVBAR_VERTICAL_PADDING -
                    ((this.$refs.siteName && this.$refs.siteName.offsetWidth) || 0)
            }
        }
        handleLinksWrapWidth()
        window.addEventListener('resize', handleLinksWrapWidth, false)
    },

    computed: {
        algolia() {
            return this.$themeLocaleConfig.algolia || this.$site.themeConfig.algolia || {}
        },

        isAlgoliaSearch() {
            return this.algolia && this.algolia.apiKey && this.algolia.indexName
        },
    },
    methods: {
        noMoreTips() {
            localStorage.setItem('showV2Tips', true)
            // 刷新页面，因为多个地方的布局有依赖这个变量
            location.reload()
        },
    },
}

function css(el, property) {
    // NOTE: Known bug, will return 'auto' if style value is 'auto'
    const win = el.ownerDocument.defaultView
    // null means not to return pseudo styles
    return win.getComputedStyle(el, null)[property]
}
</script>

<style lang="stylus">
$navbar-vertical-padding = 0.7rem;
$navbar-horizontal-padding = 6rem;

.navbar {
    padding: $navbar-vertical-padding $navbar-horizontal-padding;
    line-height: $navbarHeight - 1.4rem;

    a, span, img {
        display: inline-block;
    }

    .logo {
        height: $navbarHeight - 1.4rem;
        min-width: $navbarHeight - 1.4rem;
        margin-right: 0.8rem;
        vertical-align: top;
    }

    .site-name {
        font-size: 1.3rem;
        font-weight: 600;
        color: $textColor;
        position: relative;
    }

    .links {
        padding-left: 1.5rem;
        box-sizing: border-box;
        background-color: white;
        white-space: nowrap;
        font-size: 0.9rem;
        position: absolute;
        right: $navbar-horizontal-padding;
        top: $navbar-vertical-padding;
        display: flex;

        .search-box {
            flex: 0 0 auto;
            vertical-align: top;
        }
    }
}

@media (max-width: $MQMobile) {
    .navbar {
        padding-left: 4rem;

        .can-hide {
            display: none;
        }

        .links {
            padding-left: 1.5rem;
        }

        .site-name {
            width: calc(100vw - 9.4rem);
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }
    }
}
</style>
